Separable button



(No Model.)

0. E. PERRY. SEPARABLE BUTTON.

No. 468,037. Patented Feb. 2. 18.92.

' Rye/2591," Cyzarzes l' ry $92196 UNITED STATES PATENT OFFICE;

CHARLES E. PERRY, OE MILES CITY, MONTANA.

SEPARABLE BUTTON.

SPECIFICATION forming part of Letters Patent No. 468,037, dated February2, 1892.

Serial No. 397,982. (No model.)

T0 (0% ZUhO'II'L it may concern.-

Be it known that 1, CHARLES E. PERRY, a citizen of the United States,residing at Miles City, in the county of Custer and State of Montana,have invented a new and useful Improvement in Separable Buttons,of whichthe following is a specification.

My invention relates to an improvement in separable buttons of thecharacter set forth and described in Letters Patent of the United StatesNo. 434,802, granted to me August 19, 1890. The separable button asdescribed and claimed in said Letters Patent involves two parts-ahead-piece nd the button properhaving a tapering shank adapted to entera concentric tubular extension of the headpiece and retained bya springlocking-shoulder to be displaced by a wedge-shaped disk, the operationof which, when pressed by the finger, is to spread the springlockingshoulders to permit the button to be with drawn. The constructionshown in that patent is entirely operative and presents many points ofdesirability; but I have found that the same is capable of improvement,whereby it may be manufactured more economically in the quantitynecessary to supply the demand; and the object of my present inventionis to effect this improvement in the manner presently described.

My invention consists in the separable button comprising, as before, thehollow headpiece, disk-shaped in plan view and having a short concentrictubular extension in its lower side or collet, perforated centrally inits upper face-plate and carrying in its interior a circular lockingdevice comprising segments adjusted together and held in place by asurrounding spring. A wedge or button tapering in its lower part isretained in the central aperture afforded in the locking device andprojects through the central perforation in the face-plate, and itsoperation un; der the pressure of the finger is to spread apart thesegments forming the locking device against the resistance of theretainingspring. The button is provided, as in the case of the patentabove mentioned, with a concentric shank, the extremity of which isprovided with an annular shoulder adapted to be engaged by the lockingdevice when in its normal position under action of its spring.

The operation of inserting and withdrawing the button, so far as themanipulation is concerned, is the same as in the case of my previousLetters Patent.

In the drawings, Figure]. is a horizontal central section through theheadpiece. Fig. 2 is a sectional elevation of a button with all thepartsadjusted together; and Figs. 3 and 4 are plan views, respectively, ofthe faceplate and collet.

A represents the button provided with the concentric shank B, having itsinner end reduced and provided with a shoulder t. 111- stead of the formshown in the present drawings, the shank may have the form illustratedin my said Letters Patent, according to the preference of themanufacturer. The headpiece comprises, preferably, acentrally-penforated face or top plate 0, turned over at the edge toform a flange .9, and a centrally-perforated collet D, turned up at itsedge to form the flange 5, adapted to fit closely within the flange 3,and it is provided by preference with an integral concentric projectingtubular extension 0' of a dimension sufficient to receive the shank ofthe button, Supported between the faceplate and collet of the headpiece,but not necessarily fixed therein, is the locking-plate E, comprisingsegments 2), held normally together by the surrounding spring F. Eachsegment is provided on its inner edge with the upward extension 0, thelower extremity of which affords a shoulder, While the outer end of theextension tapers to produce, when the segments are adjusted together, awedge-shaped opening. The dimension of the aperture obtained in theplate E, when the segments are adjusted and held together, is such as toprovide a shoulder to act against the shoulder 25, formed upon the shankof the button, thus serving to hold the button against withdrawal afterthe same has been introduced. A push button G, preferably made hollowand at its lower edge enlarged into a flange n, as shown, is insertedfrom below through the central aperture in the faceplate 0 and restsnormally in the upper part of the tapering or wedge-shaped openingbetween the flanges 0, formed in the lockingplate E.

The operation of the device is as follows: The push-button G having beenintroduced into its aperture, the locking-plate segments adjustedtogether within the spring F and introduced between the face-plate C andcollet D, the face-plate and collet may be soldered or otherwise securedfirmly together. The shank B is thereupon introduced through the tube 0"until its shoulder is caught in the shoulder formed in thelocking-plate, the segments of the latter being separated against theresistance of the spring during the introduction of the shank, and thebutton is thereupon complete and the parts irremovable, except upon apositive action exerted against the push-button G. The effect ofpressure against the push-button is to cause an expanding of thelocking-plate, releasing the shank and permitting the button to bewithdrawn.

The locking-plate may be made in as many segments as may be desired,whether formed as segments of the same plate radially divided or asseparate pieces, and the spring may assume other forms than that shown.The push-button may be varied in its construction, as mentioned in myprevious Letters Patent, and the head-piece may be made of a singlepiece of metal or several pieces, according to the election of themanufacturer.

It is deemed unnecessary to recite the various modifications which arepossible; but I desire it understood that such variations as I havementioned and others of a similar character not departing from theprinciple of the invention as covered by my claims are intended to beincluded therein.

What I claim as new, and desire to secure by Letters Patent, is

1. A separable button comprising, in combination, a button A, having ashouldered shank, a hollow head-piece perforated for the reception ofthe shank, a locking-plate within the head-piece, comprisingradially-extendin g spring-controlled sections 19 and having the'central annular shoulder, and a wedge engaging and expanding-thelocking-plate, substantially as described.

2. A separable button comprising, in combination, a button A, having ashouldered shank B, the hollow head-piece O D, having centralperforations opposite to each other, a locking-plate E, composed ofsegments 10, held together by a surrounding spring F and presentin g thetapering central opening terminating in a shoulder adapted to engage theshoulder on the shank, and a push-button entering the tapering apertureof the locking-plate and extending through the central opening in theupper face-plate of the head-piece, the parts being arranged to operatesubstantially as described.

. CHARLES E. PERRY.

In presence of- J. N. HANSON, M. J. FROST.

